Backfilling & overburden

Mixing technology for perfectly homogenous mixtures

Perfectly homogeneous backfill and landfill

When a mining deposit is exhausted, the cavities created can be filled with suspensions or slurries, among other things. Our mixing systems operating in continuous or batch mode have proven their worth many times over in this field. A high degree of mixture homogeneity in combination with a high degree of binder liberation ensures stability.

Benefits at a glance:

  • Economical and energy-efficient solutions
  • High degree of homogeneity in a short time
  • Continuous or batch operation
  • Robust system provides high operational reliability
  • Available in various sizes

Machines you can rely on

Whether you choose twin-shaft batch mixers (type DKX), single-shaft continuous mixers (type MFKG) or the Combimix system (type DKXC) – you can fully rely on your system creating extremely homogeneous mixtures. All systems work reliably and feature low operating costs as an added benefit. We are also the right partner when it comes to integrating machines into existing facilities with dosing and control technology. Our experts are happy to advise you on the selection of the appropriate solution.

Single-shaft continuous mixer (MFKG)

High-performance, maintenance-friendly solution for continuous mixing processes with finer grains

Twin-shaft batch mixer (DKX)

Invented by BHS – proven, reliable and innovative – providing top mixing results for complex applications for over 130 years

Combimix processes (DKXC)

The reliability of the twin-shaft batch mixer coupled with the advantages of continuous operation

Tests give certainty

Which mixer is the right one for your application? Don’t leave anything to chance. Leave it to our team of process consultants. Working together with you, our specialists will test the material and develop a tailor-made solution for you.

Success stories

Largest mixer in the corporate history of BHS

After winning an international tender, BHS-Sonthofen was commissioned with constructing the largest mixer in the company’s history. An Indian zinc mine operator required a mixer with a very large filling capacity. The proven Combimix system with overflow was custom-built by BHS-Sonthofen in this extraordinary size and shipped off to India. Ease of maintenance, implementation of all customer requirements and a local service office convinced the Indian customer to opt for BHS-Sonthofen.

Combimix proves itself in Canada’s ‘Valley of the Kings’

The Brucejack Gold Mine in the province of British Columbia, Canada commenced operation in the summer of 2017. It uses a Combimix mixer supplied by BHS-Sonthofen to stabilize the tailings – fine-grained residues from gold mining used for backfilling the mine. Among other things, the mixer sets itself apart with especially high availability at the remote location on Brucejack Lake.


bauma CHINA 2020

24.11.-27.11.2020 | Shanghai (China)
Hall E7, booth 538

Hillhead 2021

22.06.-24.06.2021 | Hillhead Quarry Buxton (UK)
Booth B36

Intermat Paris 2021

19.04.-24.04.2021 | Paris (France)

bauma CONEXPO INDIA 2020

23.02.-26.02.2021 | Gurgaon/New Delhi (India)

bauma 2022

04.04.-10.04.2022 | Munich (Deutschland)

Satisfied customers worldwide


Find a sales representative

Find your personal contact person on site. We are there for you worldwide.

Find a sales representative

Find your personal contact person on site. We are there for you worldwide.